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245篇 您的检索式:作者名="SIMON X"
    题名 作者 年代 出处 被引量
1番茄采摘机器人机械臂避障路径规划显示文摘以关节型机械臂避开垂直茎秆或撑杆采摘番茄为研究对象,提出了一种基于构形空间的关节型机械臂避障路径规划方法。利用空间映射原理,将关节型机械臂工作空间的三维避障问题转换为平面R-R机械臂避开障碍圆的问题,用临界碰撞关节角建立C-障碍空间的映射计算模型,将工作空间的位置避障转换为构形空间连杆关节角的计算。以能量最优函数优选避障规划的关节终点角度,利用A*算法计算平面R-R机械臂的避障关节角路径,获得一系列表示空间连杆位置的相交竖直面,并在竖直面内进行其余关节角的规划。避障采摘番茄的试验表明,机械臂带动夹持器能成功绕过直线状障碍物,引导夹持器到达果实目标位置,证明对平面R-R机械臂的空间映射建模是正确的,验证了提出的避障路径规划方法是可行的,可以应用于番茄的自动收获。尹建军 武传宇 Yang Simon X Gauri S Mittal 毛罕平 2012农业机械学报2012,43,12:33
2麝香保心丸对血管平滑肌细胞表型转化的影响显示文摘目的:观察麝香保心丸(SXBXW)对血管平滑肌细胞表型转化的影响。方法:以血管平滑肌细胞系RASMCP8为模型,设对照组,SXBXW0.25、0.5、1.0和2.0g/L组,经不同浓度的SXBXW作用后,用流式细胞术测定RASMCP8细胞的收缩型特异性分子标志物α-平滑肌肌动蛋白(α-SMA)和平滑肌肌球蛋白重链(SM-MHC)表达的变化。结果:与对照组相比,经SXBXW处理后,α-SMA和SM-MHC的阴性细胞百分比降低,阳性细胞百分比增加。结论:SXBXW能促使血管平滑肌细胞的表型从合成型向收缩型转化。车贤达 Simon X Liang Xingmai Jiang 高瑞兰 张庆刚 钱琳艳 赵嫣 Beng H Chong 2010中国病理生理杂志2010,26,11:6
3空间外差光谱仪的干涉图校正显示文摘空间外差光谱技术(SHS)作为一种新型超光谱分辨率的光谱分析技术近年来得到了快速发展和广泛应用。根据SHS的基本结构和原理,本文对SHS应用系统中能对干涉图产生影响的各种干扰和畸变进行了分析,并针对这些干扰提出了一种SHS干涉图校正方案。实验结果表明,该方案不仅可以对干涉图进行有效校正,而且复原光谱能够良好地反映输入光谱信息,提高SHS的反演精度。张文理 田逢春 赵贞贞 张丽 Yang Simon X 宋安 2017光电工程2017,44,5:6
4麝香保心丸对血管平滑肌细胞表型转化和增殖的影响显示文摘目的:观察麝香保心丸(SXBXW)对血管平滑肌细胞表型转化和增殖的影响。方法:培养平滑肌细胞系RASMC P8细胞并将其分成对照组和SXBXW药物组。并观察SXBXW对细胞增殖、增殖周期、对血管平滑肌α-平滑肌肌动蛋白(α-SMA)和肌球蛋白重链(SM-MHC)表达的影响。结果:麝香保心丸抑制RASMC P8细胞由收缩型向合成型转化,表现为收缩型细胞的标志物α-SMA和SM-MHC标记的阳性细胞增加,阴性细胞减少,同时抑制RASMC P8细胞周期从G1期向S期转化,从而抑制细胞的增殖。结论:SXBXW能有效的抑制血管平滑肌的细胞表型转化和细胞增殖。张庆刚 高瑞兰 Beng H Chong Simon X Liang Xingmai Jiang 车贤达 2014中华中医药学刊2014,32,4:5
5Two strategies for prevention of cytomegalovirus infections after liver transplantation显示文摘AIM: To analyze differences in patients' clinical course, we compared two regimes of either preemptive therapy or prophylaxis after liver transplantation.METHODS: This retrospective study was reviewed and approved by the institutional review board of the University of Leipzig. Cytomegalovirus(CMV) prophylaxis with valganciclovir hydrochloride for liver transplant recipients was replaced by a preemptive strategy in October 2009. We retrospectively compared liver transplant recipients 2 years before and after October 2009. During the first period, all patients received valganciclovir daily. During the second period all patients included in the analysis were treated following a preemptive strategy. Outcomes included one year survival and therapeutic intervention due to CMV viremia or infection.RESULTS: Between 2007 and 2010 n = 226 patients underwent liver transplantation in our center. n = 55 patients were D^+/R^- high risk recipients and were excluded from further analysis. A further 43 patients had to be excluded since CMV prophylaxis/preemptive strategy was not followed although there was no clinical reason for the deviation. Of the remaining 128 patients whose data were analyzed, 60 receivedprophylaxis and 68 were treated following a preemptive strategy. The difference in overall mortality was not significant, nor was it significant for one-year mortality where it was 10%(95%CI: 8%-28%, P = 0.31) higher for the preemptive group. No significant differences in blood count abnormalities or the incidence of sepsis and infections were observed other than CMV. In total, 19 patients(14.7%) received ganciclovir due to CMV viremia and/or infections. Patients who were treated according to the preemptive algorithm had a significantly higher rate risk of therapeutic intervention with ganciclovir [n = 16(23.5%) vs n = 3(4.9%), P = 0.003)].CONCLUSION: These data suggest that CMV prophylaxis is superior to a preemptive strategy in patients undergoing liver transplantation.Philipp Simon Max Sasse Sven Laudi David Petroff Michael Bartels Udo X Kaisers Sven Bercker 2016World Journal of Gastroenterology2016,22,12:5
6A novel neural network method for shortest path tree computation显示文摘Hong Qu Simon X Yang Zhang Yi 2012Applied Soft Computing2012,12,10:1
7Feasibility and efficacy of molecular analysis- directed individualized therapy in advanced non - small - cell lung cancer显示文摘Simon G Sharma A Li X 2007J Clin Oncol2007,25,19:1
8Cue Recognition and Cue Elaboration in Learning from Examples 显示文摘Zhu X Lee Y Simon H A 1996Proceedings of the National Academic of Sciences of United States1996,93,3:1
9A review of copper cyanide recovery technologies for the cyanidation of copper containing gold ores 显示文摘Dai X W Andrew Simons Paul Breuer 2012Minerals Engineer- ing2012,25,1:1
10Self-help housing strategy for temporary population in Guangzhou, China 显示文摘Roger C K Chan Y M Yao Simon X B Zhao 2003Habitat International2003,,27:1
11Pork farm odourmodelling using multiple-component multiple-factor anal-ysis and neural networks显示文摘Kevin R J Simon X Y Roger R H 2005Applied Soft Computing2005,6,1:1
12Power system frequency estimation using supervised Gauss-Newton algorithm显示文摘Spark Y X Simon X Y 2009Measurement2009,42,1:1
13A review of copper cyanide recovery technologies for the cyanidation of copper containing gold ores 显示文摘DAI X SIMONS A BREUER P 2012Minerals Engineering2012,25,1:1
14Neural Network Approaches to Dynamic Collision-free Trajectory Generation显示文摘SIMON X YANG M M 2001IEEE Transaction on Systems Man and Cybernetics Part B:Cybernetics2001,31,3:1
15The integrins 显示文摘Takada Y Ye X Simon S 2007GenomeBiol2007,8,5:1
16Pathogen elicitor-induced changes in the maize extracellular matrix proteome显示文摘CHIVASA S SIMON W J YU X L 2005Proteomics2005,5,:1
17The epidemiology of organophosphate poisoning in urban Zimbabwe from 1995 to 2000显示文摘Dong X Simon MA 2001Int J Occup Environ Health2001,7,4:1
18On Image Analysis by Moments显示文摘X Liao Simon Miroslaw Pawlak 1996IEEE Trans on PAMI1996,18,3:1
19Determination of trace amounts of formaldehyde in acetone显示文摘HUANG X H H SIMON H S YU J Z 2007Anal Chim Acta2007,604,2:1
20Epinephrine ab- sorption in adults: intramuscular versus subcutaneous injection显示文摘SIMONS F E GU X SIMONS K J 2001J Allergy Clin Immunol2001,108,:1
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